We have a couple barreled uppers in-stock, but can build to suit. What configuration are you looking for? We also have complete flat-top uppers less barrel/bolt/etc.
You might also check with Beech Grove Firearms and Elmore's in Greenwood. I know Russ has some LMT complete uppers in stock. Give them a call... after all a phone call is better than a wasted drive...unless there is something else that your looking for.